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File: [Pegasus] / pegasus / src / Pegasus / Common / ThreadPool.h
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Revision: 1.7, Tue Dec 2 09:00:53 2008 UTC (15 years, 7 months ago) by martin Branch: MAIN CVS Tags: preBug9676, postBug9676, TASK_PEP317_1JUNE_2013, TASK-TASK_PEP362_RestfulService_branch-root, TASK-TASK_PEP362_RestfulService_branch-merged_out_from_trunk, TASK-TASK_PEP362_RestfulService_branch-merged_in_to_trunk, TASK-TASK_PEP362_RestfulService_branch-merged_in_from_branch, TASK-TASK_PEP362_RestfulService_branch-branch, TASK-PEP362_RestfulService-root, TASK-PEP362_RestfulService-merged_out_to_branch, TASK-PEP362_RestfulService-merged_out_from_trunk, TASK-PEP362_RestfulService-merged_in_to_trunk, TASK-PEP362_RestfulService-merged_in_from_branch, TASK-PEP362_RestfulService-branch, TASK-PEP348_SCMO-root, TASK-PEP348_SCMO-merged_out_to_branch, TASK-PEP348_SCMO-merged_out_from_trunk, TASK-PEP348_SCMO-merged_in_to_trunk, TASK-PEP348_SCMO-merged_in_from_branch, TASK-PEP348_SCMO-branch, TASK-PEP317_pullop-root, TASK-PEP317_pullop-merged_out_to_branch, TASK-PEP317_pullop-merged_out_from_trunk, TASK-PEP317_pullop-merged_in_to_trunk, TASK-PEP317_pullop-merged_in_from_branch, TASK-PEP317_pullop-branch, RELEASE_2_9_2-RC2, RELEASE_2_9_2-RC1, RELEASE_2_9_2, RELEASE_2_9_1-RC1, RELEASE_2_9_1, RELEASE_2_9_0-RC1, RELEASE_2_9_0-FC, RELEASE_2_9_0, RELEASE_2_9-root, RELEASE_2_9-branch, RELEASE_2_14_1, RELEASE_2_14_0-RC2, RELEASE_2_14_0-RC1, RELEASE_2_14_0, RELEASE_2_14-root, RELEASE_2_14-branch, RELEASE_2_13_0-RC2, RELEASE_2_13_0-RC1, RELEASE_2_13_0-FC, RELEASE_2_13_0, RELEASE_2_13-root, RELEASE_2_13-branch, RELEASE_2_12_1-RC1, RELEASE_2_12_1, RELEASE_2_12_0-RC1, RELEASE_2_12_0-FC, RELEASE_2_12_0, RELEASE_2_12-root, RELEASE_2_12-branch, RELEASE_2_11_2-RC1, RELEASE_2_11_2, RELEASE_2_11_1-RC1, RELEASE_2_11_1, RELEASE_2_11_0-RC1, RELEASE_2_11_0-FC, RELEASE_2_11_0, RELEASE_2_11-root, RELEASE_2_11-branch, RELEASE_2_10_1-RC1, RELEASE_2_10_1, RELEASE_2_10_0-RC2, RELEASE_2_10_0-RC1, RELEASE_2_10_0, RELEASE_2_10-root, RELEASE_2_10-branch, PREAUG25UPDATE, POSTAUG25UPDATE, HPUX_TEST, HEAD, CIMRS_WORK_20130824, BeforeUpdateToHeadOct82011 Changes since 1.6: +6 -6 lines BUG#: 8123 TITLE: Update copyright/license text DESCRIPTION: Fixing trailing spaces in copyright/license text |
//%LICENSE//////////////////////////////////////////////////////////////// // // Licensed to The Open Group (TOG) under one or more contributor license // agreements. Refer to the OpenPegasusNOTICE.txt file distributed with // this work for additional information regarding copyright ownership. // Each contributor licenses this file to you under the OpenPegasus Open // Source License; you may not use this file except in compliance with the // License. // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included // in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // ////////////////////////////////////////////////////////////////////////// // //%//////////////////////////////////////////////////////////////////////////// #ifndef Pegasus_ThreadPool_h #define Pegasus_ThreadPool_h #include <Pegasus/Common/Config.h> #include <Pegasus/Common/Linkage.h> #include <Pegasus/Common/Thread.h> PEGASUS_NAMESPACE_BEGIN class PEGASUS_COMMON_LINKAGE ThreadPool { public: /** Constructs a new ThreadPool object. @param initialSize The number of threads that are initially added to the thread pool. @param key A name for this thread pool that can be used to determine equality of two thread pool objects. Only the first 16 characters of this value are used. @param minThreads The minimum number of threads that should be contained in this thread pool at any given time. @param maxThreads The maximum number of threads that should be contained in this thread pool at any given time. @param deallocateWait The minimum time that a thread should be idle before it is removed from the pool and cleaned up. */ ThreadPool( Sint16 initialSize, const char* key, Sint16 minThreads, Sint16 maxThreads, struct timeval& deallocateWait); /** Destructs the ThreadPool object. */ ~ThreadPool(); /** Allocate and start a thread to do a unit of work. @param parm A generic parameter to pass to the thread @param work A pointer to the function that is to be executed by the thread @param blocking A pointer to an optional semaphore which, if specified, is signaled after the thread finishes executing the work function @return PEGASUS_THREAD_OK if the thread is started successfully, PEGASUS_THREAD_INSUFFICIENT_RESOURCES if the resources necessary to start the thread are not currently available. PEGASUS_THREAD_SETUP_FAILURE if the thread could not be setup properly. PEGASUS_THREAD_UNAVAILABLE if this service is shutting down and no more threads can be allocated. */ ThreadStatus allocate_and_awaken( void* parm, ThreadReturnType(PEGASUS_THREAD_CDECL* work) (void*), Semaphore* blocking = 0); /** Cleans up idle threads if they have been running longer than the deallocate_wait configuration and more than the configured minimum number of threads is running. @return The number of threads that were cleaned up. */ Uint32 cleanupIdleThreads(); void get_key(Sint8* buf, int bufsize); inline void setMinThreads(Sint16 min) { _minThreads = min; } inline Sint16 getMinThreads() const { return _minThreads; } inline void setMaxThreads(Sint16 max) { _maxThreads = max; } inline Sint16 getMaxThreads() const { return _maxThreads; } inline Uint32 runningCount() { return (Uint32) _runningThreads.size(); } inline Uint32 idleCount() { return (Uint32) _idleThreads.size(); } private: ThreadPool(); // Unimplemented ThreadPool(const ThreadPool &); // Unimplemented ThreadPool & operator=(const ThreadPool &); // Unimplemented static ThreadReturnType PEGASUS_THREAD_CDECL _loop(void *); static Boolean _timeIntervalExpired( struct timeval* start, struct timeval* interval); static void _deleteSemaphore(void* p); void _cleanupThread(Thread* thread); Thread* _initializeThread(); void _addToIdleThreadsQueue(Thread* th); Sint16 _maxThreads; Sint16 _minThreads; AtomicInt _currentThreads; struct timeval _deallocateWait; char _key[17]; List<Thread, Mutex> _idleThreads; List<Thread, Mutex> _runningThreads; AtomicInt _dying; }; PEGASUS_NAMESPACE_END #endif // Pegasus_ThreadPool_h
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